A biker came to a dealer in Winchester, Va a few days ago for an annual state inspection...his bike failed because the rear tire was bald. $275 for new tire, mount and balancing. He wanted to buy a Dunlop tire and bring in for mounting, the service manager said no can do...their insurance will not cover the shop if they mount a tire that they did not sale. I have never had this happen to me, I always have bought my own tires in to have mounted. There is always a new twist.